Drinking glass stem



FIG. 1 is front elevational view of a drinking glass stem showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a sectional view taken along line 3-3 of FIG. 1;

FIG. 4 is a sectional view taken along line 4-4 of FIG. 1; and,

FIG. 5 is a sectional view taken along line 5-5 of FIG. 1.

The broken line showing of a drinking glass stem is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a drinking glass stem, as shown and described. 